Identify and describe the tone the author uses in the following passage below. explain your reasoning and cite evidence to support your response we refuse to believe that there are insufficient funds in the great vaults of opportunity of this nation. and so we've come to cash this check, a check that will give us upon demand the riches of freedom and the security of justice. so even though we face the difficulties of today and tomorrow, i still have a dream. it is a dream deeply rooted in the american dream. i have a dream that one day this nation will rise up and live out the true meaning of its creed: we hold these truths to be self-evident, that all men are created equal. i have a dream that my four little children will one day live in a nation where they will not be judged by the color of their skin but by the content of their character.